Fig. 2
Subcutaneous fat (SCF) measurements and effusion-synovitis development. This 53-year-old woman had a baseline BMI of 35.2 kg/m.2 and lost 27.5% weight over 48 months. Medial and lateral SCF decreased by 13.5 mm and 8.5 mm, respectively, from baseline (a) to 48-months follow-up (a’). Effusion-synovitis (*) regressed from grade 2 at baseline (b) to grade 1 at 48-months follow-up (b’). Medial and lateral measurements were performed in coronal 3D FLASH sequences (a, a’) at two levels (at the tip of the medial tibial spine and at the level of the medial joint space) and averaged. Anterior measurements were performed in sagittal reformations (not shown). Semi-quantitative readings of effusion-synovitis by MOAKS were performed in non-enhanced axial reformations of 3D DESS sequences (b, b’)